A six-sided die is rolled four times.
a. Find the probability (in fraction form) of rolling a 2, then a 6, then a 4, and then a 1.
b. Find the probability (in fraction form) of rolling all 6s.
c. Compare the results you found in parts (a) and (b).
d. A student says the result you found in part (b) should be less than the result you found in part (a) because it is less likely to get all 6s than four different numbers. What would you tell the student?